BIO 253 EXAM 3 ACTUAL EXAM SCRIPT 2026
COMPLETE QUESTIONS AND SOLUTIONS
GRADED A+
◉ Pressure gradients are established by changes in the.
Answer: thoracic cavity. Correct
◉ _____ law states that the volume of a gas is inversely proportional
to its pressure.
Answer: Boyle's
◉ During inspiration, as the size of the thorax increases, the.
Answer: intrapleural and alveolar pressures decrease. Correct
◉ The ability of the lungs and thorax to stretch is referred to as.
Answer: compliance. Correct
◉ An obstructive lung disorder that is characterized by recurring
spasms of the smooth muscles in the wall of the bronchial air
passages is.
Answer: asthma. Correct
,◉ During the respiratory cycle, intrapleural pressure is always less
than alveolar pressure. This difference is called.
Answer: transpulmonary pressure. Correct
◉ The sensors that provide feedback information to the medullary
rhythmicity area are the.
Answer: central chemoreceptors and peripheral chemoreceptors.
Correct
◉ The apparatus used to measure the volume of air exchanged in
breathing is called a(n).
Answer: spirometer. Correct
◉ The basic rhythm of the respiratory cycle of inspiration and
expiration seems to be generated by the.
Answer: medullary rhythmicity area. Correct
◉ Which term refers to the volume of inspired air that actually
reaches, or "ventilates," the alveoli?.
Answer: alveolar ventilation Correct
◉ The volume of air exhaled normally after a typical inspiration is
called _____ volume..
Answer: tidal Correct
, ◉ Hyperpnea means a(n).
Answer: increase in breathing. Correct
◉ The _____ represents the largest volume of air an individual can
move in and out of the lungs..
Answer: vital capacity Correct
◉ The forced expiratory volume test can determine the presence of
respiratory obstruction by measuring the.
Answer: volume of air expired per second during forced expiration.
Correct
◉ According to the law of partial pressures, the partial pressure of
gas in a mixture of gases is.
Answer: directly related to the concentration of that gas in the
mixture and to the total pressure of the mixture. Correct
◉ Oxygen enters blood from alveolar air because the partial
pressure of alveolar air is.
Answer: greater than the partial pressure of incoming blood. Correct
◉ The amount of oxygen that diffuses into blood each minute
depends on which factor?.
COMPLETE QUESTIONS AND SOLUTIONS
GRADED A+
◉ Pressure gradients are established by changes in the.
Answer: thoracic cavity. Correct
◉ _____ law states that the volume of a gas is inversely proportional
to its pressure.
Answer: Boyle's
◉ During inspiration, as the size of the thorax increases, the.
Answer: intrapleural and alveolar pressures decrease. Correct
◉ The ability of the lungs and thorax to stretch is referred to as.
Answer: compliance. Correct
◉ An obstructive lung disorder that is characterized by recurring
spasms of the smooth muscles in the wall of the bronchial air
passages is.
Answer: asthma. Correct
,◉ During the respiratory cycle, intrapleural pressure is always less
than alveolar pressure. This difference is called.
Answer: transpulmonary pressure. Correct
◉ The sensors that provide feedback information to the medullary
rhythmicity area are the.
Answer: central chemoreceptors and peripheral chemoreceptors.
Correct
◉ The apparatus used to measure the volume of air exchanged in
breathing is called a(n).
Answer: spirometer. Correct
◉ The basic rhythm of the respiratory cycle of inspiration and
expiration seems to be generated by the.
Answer: medullary rhythmicity area. Correct
◉ Which term refers to the volume of inspired air that actually
reaches, or "ventilates," the alveoli?.
Answer: alveolar ventilation Correct
◉ The volume of air exhaled normally after a typical inspiration is
called _____ volume..
Answer: tidal Correct
, ◉ Hyperpnea means a(n).
Answer: increase in breathing. Correct
◉ The _____ represents the largest volume of air an individual can
move in and out of the lungs..
Answer: vital capacity Correct
◉ The forced expiratory volume test can determine the presence of
respiratory obstruction by measuring the.
Answer: volume of air expired per second during forced expiration.
Correct
◉ According to the law of partial pressures, the partial pressure of
gas in a mixture of gases is.
Answer: directly related to the concentration of that gas in the
mixture and to the total pressure of the mixture. Correct
◉ Oxygen enters blood from alveolar air because the partial
pressure of alveolar air is.
Answer: greater than the partial pressure of incoming blood. Correct
◉ The amount of oxygen that diffuses into blood each minute
depends on which factor?.
